A toy bow uses a spring with spring constant

PHYSICS · Single correct · CBSE · Physics · Work, Energy and Power · Work, Energy and Power

Problem

200\,\text{N/m}

. The string is pulled back

15\,\text{cm}

and released. Calculate the elastic potential energy stored in the spring. (a)

15\,\text{J}

(b)

2.25\,\text{J}

(c)

4.5\,\text{J}

(d)

22.5\,\text{J}